Title:
多層コア成形方法
Document Type and Number:
Japanese Patent JP7386065
Kind Code:
B2
Abstract:
A multilayer core molding method includes an upstream process of molding using an upstream process molding apparatus, which includes a first upstream process mold including a first upstream process mold cavity surface, and a second upstream process mold including a second upstream process mold cavity surface. The upstream process includes an inner core arrangement step and a covering step to obtain an intermediate molded body, which includes the inner core, and the unvulcanized or semi-vulcanized first outer core material covering only part of a surface of the inner core and integrated with the inner core.
Inventors:
Kazunori Nakajima
Satoru Judai
Satoru Judai
Application Number:
JP2019220549A
Publication Date:
November 24, 2023
Filing Date:
December 05, 2019
Export Citation:
Assignee:
Bridgestone Sports Co., Ltd.
International Classes:
A63B45/00; B29C43/18; B29C43/20; B29C43/34
Domestic Patent References:
| JP2008302217A | ||||
| JP200324474A |
Foreign References:
| US20130256946 | ||||
| US2376085 | ||||
| US20020066976 |
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Yasuyuki Komatsu
Rei Ito
Mitsutsugu Sugimura
Yasuyuki Komatsu
Rei Ito